Check for fingerprints (4)
I believe the answer is:
dust
'check for fingerprints' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for dust that I've seen before include "Powdery matter" , "Do household cleaning" , "Fine powdery material that can be blown about in the air" , "Stud (anag)" , "Clean; fine powder" .)